Quote - Hi!

Not for Mac OS on the Lux page that I found. Perhaps an older version?

http://www.luxrender.net/en_GB/standalone#osx

Quote - There are OpenCL and non OpenCL versions of Lux.

 

Youve got the right page http://www.luxrender.net/en_GB/standalone#osx

Direct link to the OpeCL version

http://www.luxrender.net/release/luxrender/1.2/mac/LuxRender_1.2.1_OSXIntel_64bit.dmg

Because OpenCl is natively supported in OSX, there is only one version listed on the page, while Windows & Linux have two. The OpenCL version will work with CPU Only renders as well.  The difference  between the two versions is that the OpenCL version gives access to the SLG & Hybrid modes that require OpenCL. You should have no problem running in on your system without a more powerful GPU, you will just be limited to CPUonly renders (which isn't a bad thing, just needs a bit more patience ;-) )